The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 22, 2021
Filed:
Sep. 06, 2018
Applicant:
Carl Zeiss Meditec Ag, Jena, DE;
Inventor:
Peter Reimer, Ellwangen, DE;
Assignee:
CARL ZEISS MEDITEC AG, Jena, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 9/007 (2006.01); A61B 3/103 (2006.01); A61B 3/107 (2006.01); A61B 3/16 (2006.01);
U.S. Cl.
CPC ...
A61B 3/107 (2013.01); A61B 3/103 (2013.01); A61B 3/165 (2013.01); A61F 9/007 (2013.01);
Abstract
A method for establishing the refraction of an eye () by means of a refractometer () is provided, in which the current visual axis (S) of the eye () is established before establishing the refraction, the refractometer () is aligned with respect to the visual axis (S) of the eye () and the refraction is established after the alignment. The visual axis (S) of the eye () is established on the basis of the position of a Purkinje image of at least one light source () used to illuminate the eye and a relationship between the position of the Purkinje image and the visual axis (S).